Question

which of the following would be a clue that a rock is metamorphic? choose one option a it has a complete fossil in it. b it has gas bubbles. c it is very soft. d it has ribbon - like layers, or bands.

Explanation:

• Option A: Fossils are typically found in sedimentary rocks, not metamorphic rocks.
• Option B: Gas bubbles are a characteristic of some igneous rocks (e.g., pumice), not metamorphic rocks.
• Option C: Softness is not a defining feature of metamorphic rocks. Metamorphic rocks can vary in hardness.
• Option D: Metamorphic rocks often exhibit foliation, which can appear as ribbon - like layers or bands.

Answer:

D. It has ribbon - like layers, or bands.